原创 RHEL 8.1 Support for Data Integrity Field/Data Integrity Extension (DIF/DIX)

4.9. File systems and storage Support for Data Integrity Field/Data Integrity Extension (DIF/DIX) DIF/DIX is supported

原创 rhel8中可以用yum install 安裝bcc-tools包,bcc-tools包內有execsnoop等工具

[root@rhel8server1 ~]# cat /etc/redhat-release Red Hat Enterprise Linux release 8.0 (Ootpa) [root@rhel8server1 ~]# mo

原创 Performance updates and tuning best practices for using Azure Database for PostgreSQL

In March 2018 Microsoft announced general availability of Azure Database for PostgreSQL, a simple and fully managed dat

原创 Setting up NIC Teaming for Windows Server 2012*/2012 R2*/2016*/2019*

To create a NIC Team: In Server Manager, click Local Server. In the Properties pane locate NIC Teaming, and then click

原创 How do I test connection to a ntp server?

  How do I test connection to a ntp server?  SOLUTION IN PROGRESS - 已更新 2015年十一月3日01:52 -  English  環境 Red Hat Enterpri

原创 Understanding caching in Postgres - An in-depth guide

  Originally Posted On :  16 May 2016Last Updated :  03 Aug 2016 Caching Caching can be considered an important aspect

原创 Performance best practices for using Azure Database for PostgreSQL

  Microsoft announced the public preview of Azure Database services for PostgreSQL and MySQL at Build 2017 which is a s

原创 【轉載】PG的兩種集羣技術:Pgpool-II與Postgres-XL

轉自:https://segmentfault.com/a/1190000007012082 最近研究了PG的兩種集羣方案,分別是Pgpool-II和Postgres-XL,在這裏總結一下二者的機制、結構、優劣、測試結果等。 1、 Pgp

原创 100x faster Postgres performance by changing 1 line

  A simple but non-obvious one-line change (ANY(ARRAY[...]) to ANY(VALUES(...))) in a (bad) PostgreSQL 9.0 query cuts q

原创 爲 PostgreSQL 添加 OSSP UUID 支持

PostgreSQL 依賴 OSSP UUID 產生 UUID 值,需要在 configure 時加入 --with-ossp-uuid 參數。學習過程中發現了兩種 OSSP UUID 包的安裝方式,記錄下來方便以後查閱。 第一種方法 到

原创 Disecting the Postgres Bulk Insert and Binary Format

Introduction This post delves deep into the world of bulk loading data with PostgresSQL. I’ve written about this subjec

原创 How to extract a metadata dump from a XFS filesystem?

  問題 How to extract a metadata dump from a XFS filesystem? 環境 Red Hat Enterprise Linux (RHEL) 5 Red Hat Enterprise Linu

原创 XFS filesystem shutdown when deleting millions of files on RHEL

XFS filesystem shutdown when deleting millions of files on RHEL  SOLUTION UNVERIFIED - 已更新 2019年三月8日20:43 -  English  環

原创 XFS filesystem shuts down due to I/O errors from loss of paths

XFS filesystem shuts down due to I/O errors from loss of paths  SOLUTION UNVERIFIED - 已更新 2015年一月22日09:47 -  English  環

原创 enable-case-insensitive-string-comparison-in-oracle-12c

  By default, Oracle checks content as well as casing, while comparing the two strings in "where" or "like" or "case" s